Method for maintaining walker constellation formation and terminal device

3. The method for maintaining Walker constellation formation according to claim 2, wherein the parameters of the Walker constellation comprise a nominal semi-major axis α, an eccentricity e, an orbit inclination i, the total number N of satellites, the number P of orbital planes and a phase factor F of the Walker constellation.

6. The method for maintaining Walker constellation formation according to claim 5, wherein the first offset amount comprises an offset amount of a nominal semi-major axis, an offset amount of an eccentricity and an offset amount of an orbit inclination.

14. A terminal device, comprising a non-transitory memory, a processor and a computer program which is stored on the memory and can be run on the processor, wherein the computer program, when executed by the processor, implements a method for maintaining Walker constellation formation, comprising steps of: determining, according to parameters of a Walker constellation, a first offset amount of each satellite within a simulation time period; performing first offset on each satellite according to the first offset amount to obtain a Walker constellation after the first offset; determining, according to parameters of the Walker constellation after the first offset, a second offset amount of each satellite within the simulation time period; and superimposing the first offset amount and the second offset amount, and performing second offset on each satellite according to a superimposing result so as to maintain the formation of the Walker constellation.